search for: 92093

Displaying 20 results from an estimated 563 matches for "92093".

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2002 Sep 18
2
No subject
...And how do I download the OS10 version? My computer does not recognize the .gz files on the website http://cran.r-project.org/bin/macosx/atlas/. Many thanks, Chris Wills -- Christopher Wills Professor of Biology Division of Biological Sciences University of California, San Diego La Jolla CA 92093 Phone 858-534-4113 Fax 858-534-7108 e-mail cwills@ucsd.edu -- Christopher Wills Professor of Biology Division of Biological Sciences University of California, San Diego La Jolla CA 92093 Phone 858-534-4113 Fax 858-534-7108 e-mail cwills@ucsd.edu --============_-1179735293==_ma============ Conten...
2009 Oct 13
7
lapply() reccursively
Hi all, I was wondering whether it is possible to use the lapply() function to alter the value of the input, something in the spirit of : a1<-runif(100) a2<-function(i){ a1[i]<-a1[i-1]*a1[i];a1[i] } a3<-lapply(2:100,a2) Something akin to a for() loop, but using the lapply() infrastructure. I haven't been able to get rapply() to do this. The reason is that the "real"
2006 Dec 10
4
sample "n" random positions from a matrix
Hi there, I have a binary matrix (dim 100x100) filled with values 0 and 1. I need select a record "n" positions of that matrix when values are 1. How can I do that? Thanks for all, Miltinho Brazil --------------------------------- [[alternative HTML version deleted]]
2005 Sep 14
4
Converting coordinates to actual distances
...kage, but this does not seem to contain what I am looking for. Ideally the output would be a triangular matrix of distances. Thanks in advance, Paul Brewin Paul E Brewin (PhD) Center for Research in Biological Systems University of California San Diego 9500 Gilman Drive MC 0505 La Jolla CA, 92093-0505 USA Ph: 858-822-0871 Fax: 858-822-3631
2006 Mar 28
1
opendap/dods data retrieval
...developing a package for accessing opendap/dods data using R. I see from the list archive that there was some initial work done on this. Thanks, Paul Brewin Paul E Brewin (PhD) Center for Research in Biological Systems University of California San Diego 9500 Gilman Drive MC 0505 La Jolla CA, 92093-0505 USA Ph: 858-822-0871 Fax: 858-822-3610 [[alternative HTML version deleted]]
2006 Oct 20
2
Generating start values for nls
...mated 'heuristically', as is claimed in their help files. Is there a similar R routine than may produce reasonable start values? Many thanks, Paul Brewin Paul E Brewin (PhD) Center for Research in Biological Systems University of California San Diego 9500 Gilman Drive MC 0505 La Jolla CA, 92093-0505 USA Ph: 858-822-0871 Fax: 858-822-3610
2010 Nov 27
1
Bug in parseNamespaceFile or switch( , ... ) ?
...le: [1] C attached base packages: [1] stats graphics grDevices utils datasets methods base > Charles C. Berry Dept of Family/Preventive Medicine cberry at tajo.ucsd.edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
2013 Apr 19
1
How to select the scale parameter for Gabor transform (Rwave)?
...Time", ylab="Signal", type="b") cgtsinwave <- cgt(input=ys, nvoice=nf, freqstep=df, scale=scale, plot=TRUE) Many thanks, Joaquin -- Joaquin Rapela, PhD Swartz Center for Computational Neuroscience University of California San Diego 9500 Gilman Drive, San Diego, CA 92093-0559 tel: (858) 822-7536 fax: (858) 822-7556 http://sccn.ucsd.edu/~rapela
2011 Jan 24
2
Help with expression
I have a problem with expressions. I am trying to create a title where the parameter of interest is displayed as a Greek character. Which parameter is being considered is stored in a character variable. As an example, if I have param <- "alpha" and then do plot(0, 0, main = bquote(Parameter==.(param))) then in the title I get "Parameter = alpha", whereas I want the
2010 Aug 05
3
eval-parse and lme in a loop
...e=lme(eval(parse(text=meanCol)) ~ Group + c1 + c1 + c3, data=df, random = ~ 1 | Subject) print(summary(means.lmeWithCovariate)) print(anova(means.lmeWithCovariate)) } Regards, -- Colm G. Connolly, Ph. D. Dept of Psychiatry University of California, San Diego 9500 Gilman Dr. #0738 La Jolla, CA 92093-0738 Tel: +1-858-246-0684
2007 Aug 04
2
Mixture of Normals with Large Data
All: I am trying to fit a mixture of 2 normals with > 110 million observations. I am running R 2.5.1 on a box with 1gb RAM running 32-bit windows and I continue to run out of memory. Does anyone have any suggestions. Thanks so much, Tim [[alternative HTML version deleted]]
2005 Apr 22
1
Required Packages etiquette
...sed in many functions. Do I have to require MASS? Or should I just include only "ginv" in the package? Thank you for patience. Giuseppe ------------------------------------------------------------ |Giuseppe Ragusa |University of California, San Diego |9500 Gilman Dr. 0508 |La Jolla, CA 92093
2008 May 27
4
help with simple function
I have a matrix of frequency counts from 0-160. x<-as.matrix(c(0,1,0,0,1,0,0,0,1,0,0,0,0,1)) I would like to apply a function creating a new column (x[,2])containing values equal to: a) log(x[m,1]) if x[m,1] > 0; and b) for all x[m,1]= 0, log(next x[m,1] > 0 / count of preceding zero values +1) for example, x[1,2] should equal log(x[2,1]/2) = log(1/2) = -0.6931472 whereas x[3,2] should
2008 Dec 11
3
check if a certain ... argument has been passed on to my user-defined function
Hi, How can I check if a certain ... argument has been passed on to my user-defined function or not? foo <- function(data, ...) { ### here I want to check whether xlab was passed with the ... arguments ### or if the ... arguments did not contain an xlab argument } I tried missing(xlab) , exists(xlab) and several other things but did not find a solution. TIA, Mark
2010 Jul 07
3
How do I test against a simple null that two regressions coefficients are equal?
Hi there, I run two regressions: y = a1 + b1 * x + e1 y = a2 + b2 * z + e2 I want to test against the null hypothesis: b1 = b2. How do I design the test? I think I can add two equations together and divide both sides by 2: y = 0.5*(a1+a2) + 0.5*b1 * x + 0.5*b2 * z + e3, where e3 = 0.5*(e1 + e2). or just y = a3 + 0.5*b1 * x + 0.5*b2 * z + e3 If I run this new regression, I can test against
2008 Jan 23
4
image question
Hi, I have a question regarding the image function. Is there a way to specify a separate color set for each column in the matrix? TIA, ajar. [[alternative HTML version deleted]]
2006 Dec 31
4
Does SQL group by have a heavy duty equivalent in R
I have hundreds of humans who have undergone SNP genotyping at hundreds of loci. Some have even undergone the procedure twice or thrice (kind of an internal control). So obviously I need to find those replications, and confirm that the results are the same. If there is discordance then I need to address it. I tried to use the aggregate function nr.attempts
2006 May 16
2
retaining character matrices when combining into data frames
...ish what this task but it seems that this argument was removed some time ago. Is there a more attractive alternative available now? Thanks very much, Satoshi __________ Satoshi Takahama Scripps Institution of Oceanography Center for Atmospheric Science 9500 Gilman Drive, Dept. 0221 La Jolla, CA 92093 858-531-5328
2005 Jan 12
2
?"=" (Windows) (PR#7504)
?"=", ?"==", ?"!=", ?">=", and ?"<=" sends me to the documentation for ?help on Windows, while returning the correct documentation on Linux. Robert > version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor
2011 Dec 21
4
qqnorm & huge datasets
Hi, When qqnorm on a vector of length 10M+ I get a huge pdf file which cannot be loaded by acroread or evince. Any suggestions? (apart from sampling the data). Thanks. -- Sam Steingold (http://sds.podval.org/) on Ubuntu 11.10 (oneiric) X 11.0.11004000 http://mideasttruth.com http://honestreporting.com http://camera.org http://openvotingconsortium.org http://pmw.org.il